The parties were married out of community of property and divorced in November 2006. A settlement agreement regulating the patrimonial consequences of the divorce was incorporated into the divorce order. In terms of the agreement, Mrs Roos was entitled to a fixed amount of R868,682 from Mr Roos’s Investec provident and preservation fund interests, to be paid directly to her when benefits accrued, with an endorsement to be made in terms of section 7(8) of the Divorce Act 70 of 1979. After the divorce it emerged that Investec had not made the endorsement and later indicated that, on its interpretation of the law at the time, it was not legally empowered to do so. Mr Roos then resisted enforcement, contending that he had laboured under a material mistake in believing that the funds constituted a pension interest forming part of his estate and that, had he known otherwise, he would not have concluded the settlement on those terms.